309Figure 4-1614.10.6 Lock fileCheck the box to select the record file(s), and then click Lock button, user may lock the file(s).System willnot overwrite the locked files. Please note this function is for main stream only.4.10.7 Unlock fileClick view locks, user may see the following interface. See Figure 4-162.Select a channel/start time/end time, click search button, user may view the locked files.Check the box and then click unlock, user may unlock the file.Figure 4-1624.11 Smart PlaybackIt is to realize the intelligent detect on the playback record.In the main menu, click smart playback, user may go to the following interface. See Figure 4-163.
